norite

American  

[nawr-ahyt] / ˈnɔr aɪt /

noun

1. a granular igneous rock consisting of a mix of light and dark minerals, the former being calcic plagioclase feldspars, and the latter orthorhombic pyroxenes.

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norite British  

/ ˈnɔːraɪt /

noun

1. a variety of gabbro composed mainly of hypersthene and labradorite feldspar

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norite Scientific  

/ nôr′īt /

1. See gabbro

2. A coarse-grained igneous rock, very similar to gabbro but containing orthopyroxene instead of clinopyroxene.

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Other Word Forms

• noritic adjective

Etymology

Origin of norite

From the Norwegian word norit, dating back to 1875–80. See Norway, -ite ¹

Example Sentences

Masses sufficiently large for cutting are found in the norite of the Kupferberg in the Fichtelgebirge, and in the serpentine of Kraubat near Leoben in Styria.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" by Various

These are situated in the basal portions of a great norite intrusive, and are ascribed to segregation of the sulphides as the rock solidified.

From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)

In Canada great portions of the eastern portion of the Dominion are formed of gabbros, norite, anorthosite and allied rock types.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" by Various

The granitic rocks included granite, gneisses, syenites and norite.

From New York at the Louisiana Purchase Exposition, St. Louis 1904 Report of the New York State Commission by Ellis, DeLancey M.

Locally both the ores and the associated granitic rocks replace the main norite body in such a fashion as to indicate their slightly later crystallization.

From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)